diff --git a/theme/colors/dark.css b/theme/colors/dark.css
index 2b91804..b345fde 100644
--- a/theme/colors/dark.css
+++ b/theme/colors/dark.css
@@ -70,7 +70,7 @@
 		--gnome-tabbar-tab-separator-color: rgba(255, 255, 255, .15);
 		--gnome-tabbar-tab-hover-background: #3f3f3f; /* Hardcoded color */
 		--gnome-tabbar-tab-active-background: #444444; /* Hardcoded color */
-		--gnome-tabbar-tab-active-background-contrast: #FAFAFA;
+		--gnome-tabbar-tab-active-background-contrast: #4F4F4F; /* Hardcoded color */
 		--gnome-tabbar-tab-active-hover-background: #4b4b4b; /* Hardcoded color */
 		--gnome-inactive-tabbar-background: var(--gnome-inactive-headerbar-background);
 		--gnome-inactive-tabbar-tab-hover-background: #2c2c2c; /* Hardcoded color */
diff --git a/theme/colors/light.css b/theme/colors/light.css
index be193bd..c23291b 100644
--- a/theme/colors/light.css
+++ b/theme/colors/light.css
@@ -70,7 +70,7 @@
 	--gnome-tabbar-tab-separator-color: var(--gnome-toolbar-border-color);
 	--gnome-tabbar-tab-hover-background: #dedede; /* Hardcoded color */
 	--gnome-tabbar-tab-active-background: #d9d9d9; /* Hardcoded color */
-	--gnome-tabbar-tab-active-background-contrast: #4F4F4F;
+	--gnome-tabbar-tab-active-background-contrast: #FAFAFA; /* Hardcoded color */
 	--gnome-tabbar-tab-active-hover-background: #d2d2d2; /* Hardcoded color */
 	--gnome-inactive-tabbar-background: var(--gnome-inactive-headerbar-background);
 	--gnome-inactive-tabbar-tab-hover-background: #f3f3f3; /* Hardcoded color */
diff --git a/theme/parts/tabsbar.css b/theme/parts/tabsbar.css
index 23b3c70..183c39d 100644
--- a/theme/parts/tabsbar.css
+++ b/theme/parts/tabsbar.css
@@ -450,10 +450,14 @@ tab {
 
 /* OPTIONAL: Add more contrast to the active tab */
 @supports -moz-bool-pref("gnomeTheme.activeTabContrast") {
-	.tab-background[selected=true],
+	.tab-background[selected=true]:not(#hack),
 	:root:not(:-moz-window-inactive) .tabbrowser-tab:hover > .tab-stack > .tab-background:not(#hack) {
 		background: var(--gnome-tabbar-tab-active-background-contrast) !important;
 	}
+	.tabbrowser-tab:not([pinned])[selected="true"] .tab-content::before,
+	:root:not(:-moz-window-inactive) .tabbrowser-tab:hover .tab-content::before {
+		--gnome-tabbar-tab-close-overlay-bg: var(--gnome-tabbar-tab-active-background-contrast) !important;
+	}
 }
 
 /* OPTIONAL: Show the close button on the selected tab only */